Approximately 2.7 million people in the United States have atrial fibrillation. It is the most common type of heart arrhythmia (irregular heartbeat) that can interrupt the normal flow of blood. This interruption means the condition puts you at ris...

A stroke (a "brain attack") is a medical emergency in which part of the brain is deprived of oxygen. This occurs when an artery that supplies oxygenated blood to the brain becomes damaged and brain cells begin to die.

A cerebrovascular accident is the medical term for a stroke. A stroke is when blood flow to a part of your brain is stopped either by a blockage or a rupture of a blood vessel. Learn the signs of a stroke, and the importance of getting treatment q...